HighPuritySelenium5N6N99.999%,99.9999%ImpurityPPMMax(ICP-MS)Se-5NCu/Ag/Ni/Cd0.2,Mg/Sb/Bi/In/Fe/Te/Ca/Al/Ti/Pb0.5,Hg1ppmmaxSe-6NCu/Ni/Cd/Bi/Al/Pb/In/Ti0.05,Mg/Te/Fe0.1Size1-10mmirregularlump1kgsisincompositealuminumfilmbag.)